./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cbf45a1115fd10e0de4fb28135afee6c1ce9b70ee1cd8750ed2615e2a15c1223 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:39:55,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:39:55,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:39:55,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:39:55,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:39:55,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:39:55,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:39:55,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:39:55,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:39:55,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:39:55,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:39:55,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:39:55,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:39:55,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:39:55,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:39:55,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:39:55,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:39:55,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:39:55,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:39:55,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:39:55,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:39:55,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:39:55,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:39:55,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:39:55,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:39:55,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:39:55,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:39:55,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:39:55,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:39:55,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:39:55,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:39:55,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:39:55,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:39:55,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:39:55,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:39:55,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:39:55,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:39:55,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:39:55,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:39:55,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:39:55,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:39:55,696 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 18:39:55,718 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:39:55,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:39:55,719 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:39:55,719 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:39:55,720 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:39:55,720 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:39:55,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:39:55,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:39:55,721 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:39:55,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:39:55,722 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:39:55,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:39:55,722 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:39:55,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:39:55,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:39:55,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:39:55,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:39:55,724 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:39:55,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:39:55,724 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:39:55,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:39:55,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:39:55,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:39:55,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:39:55,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:39:55,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:39:55,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:39:55,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:39:55,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:39:55,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:39:55,727 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:39:55,727 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:39:55,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:39:55,728 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbf45a1115fd10e0de4fb28135afee6c1ce9b70ee1cd8750ed2615e2a15c1223 [2022-11-18 18:39:55,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:39:56,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:39:56,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:39:56,031 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:39:56,032 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:39:56,034 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2022-11-18 18:39:56,113 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/bin/uautomizer-TMbwUNV5ro/data/09f18d50b/adaf94085dec4d78b1a487edb8bd4892/FLAG914bf7626 [2022-11-18 18:39:56,771 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:39:56,774 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2022-11-18 18:39:56,787 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/bin/uautomizer-TMbwUNV5ro/data/09f18d50b/adaf94085dec4d78b1a487edb8bd4892/FLAG914bf7626 [2022-11-18 18:39:57,051 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/bin/uautomizer-TMbwUNV5ro/data/09f18d50b/adaf94085dec4d78b1a487edb8bd4892 [2022-11-18 18:39:57,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:39:57,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:39:57,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:39:57,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:39:57,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:39:57,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:39:57" (1/1) ... [2022-11-18 18:39:57,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15d0fe1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:57, skipping insertion in model container [2022-11-18 18:39:57,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:39:57" (1/1) ... [2022-11-18 18:39:57,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:39:57,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:39:57,380 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c[12671,12684] [2022-11-18 18:39:57,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:39:57,419 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:39:57,503 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c[12671,12684] [2022-11-18 18:39:57,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:39:57,540 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:39:57,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:57 WrapperNode [2022-11-18 18:39:57,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:39:57,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:39:57,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:39:57,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:39:57,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:57" (1/1) ... [2022-11-18 18:39:57,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:57" (1/1) ... [2022-11-18 18:39:57,606 INFO L138 Inliner]: procedures = 52, calls = 94, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 169 [2022-11-18 18:39:57,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:39:57,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:39:57,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:39:57,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:39:57,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:57" (1/1) ... [2022-11-18 18:39:57,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:57" (1/1) ... [2022-11-18 18:39:57,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:57" (1/1) ... [2022-11-18 18:39:57,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:57" (1/1) ... [2022-11-18 18:39:57,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:57" (1/1) ... [2022-11-18 18:39:57,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:57" (1/1) ... [2022-11-18 18:39:57,655 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:57" (1/1) ... [2022-11-18 18:39:57,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:57" (1/1) ... [2022-11-18 18:39:57,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:39:57,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:39:57,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:39:57,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:39:57,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:57" (1/1) ... [2022-11-18 18:39:57,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:39:57,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:39:57,705 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:39:57,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:39:57,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:39:57,753 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-18 18:39:57,753 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-18 18:39:57,753 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-18 18:39:57,753 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-18 18:39:57,753 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-18 18:39:57,754 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-18 18:39:57,754 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-18 18:39:57,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-18 18:39:57,754 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-18 18:39:57,754 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-18 18:39:57,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:39:57,755 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-18 18:39:57,755 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-18 18:39:57,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:39:57,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:39:57,836 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:39:57,838 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:39:58,203 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:39:58,210 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:39:58,221 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 18:39:58,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:39:58 BoogieIcfgContainer [2022-11-18 18:39:58,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:39:58,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:39:58,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:39:58,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:39:58,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:39:57" (1/3) ... [2022-11-18 18:39:58,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144fc435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:39:58, skipping insertion in model container [2022-11-18 18:39:58,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:39:57" (2/3) ... [2022-11-18 18:39:58,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144fc435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:39:58, skipping insertion in model container [2022-11-18 18:39:58,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:39:58" (3/3) ... [2022-11-18 18:39:58,235 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product17.cil.c [2022-11-18 18:39:58,261 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:39:58,262 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:39:58,346 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:39:58,359 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@39dd625e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:39:58,359 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:39:58,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 58 states have (on average 1.396551724137931) internal successors, (81), 64 states have internal predecessors, (81), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-18 18:39:58,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 18:39:58,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:58,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:58,376 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:58,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:58,383 INFO L85 PathProgramCache]: Analyzing trace with hash 98490504, now seen corresponding path program 1 times [2022-11-18 18:39:58,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:58,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134356156] [2022-11-18 18:39:58,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:58,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:58,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 18:39:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:58,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:58,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:58,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134356156] [2022-11-18 18:39:58,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134356156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:58,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:58,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:39:58,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634192244] [2022-11-18 18:39:58,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:58,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 18:39:58,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:58,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 18:39:58,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:39:58,730 INFO L87 Difference]: Start difference. First operand has 75 states, 58 states have (on average 1.396551724137931) internal successors, (81), 64 states have internal predecessors, (81), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 18:39:58,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:58,783 INFO L93 Difference]: Finished difference Result 142 states and 193 transitions. [2022-11-18 18:39:58,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 18:39:58,786 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-11-18 18:39:58,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:58,801 INFO L225 Difference]: With dead ends: 142 [2022-11-18 18:39:58,801 INFO L226 Difference]: Without dead ends: 66 [2022-11-18 18:39:58,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:39:58,812 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:58,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:39:58,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-18 18:39:58,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-11-18 18:39:58,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 56 states have internal predecessors, (67), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-18 18:39:58,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2022-11-18 18:39:58,878 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 25 [2022-11-18 18:39:58,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:58,879 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2022-11-18 18:39:58,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 18:39:58,880 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2022-11-18 18:39:58,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 18:39:58,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:58,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:58,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:39:58,886 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:58,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:58,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1431022591, now seen corresponding path program 1 times [2022-11-18 18:39:58,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:58,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839839817] [2022-11-18 18:39:58,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:58,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:59,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 18:39:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:59,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:59,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:59,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839839817] [2022-11-18 18:39:59,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839839817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:59,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:59,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:39:59,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369484930] [2022-11-18 18:39:59,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:59,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:39:59,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:59,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:39:59,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:39:59,036 INFO L87 Difference]: Start difference. First operand 66 states and 84 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 18:39:59,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:59,050 INFO L93 Difference]: Finished difference Result 98 states and 124 transitions. [2022-11-18 18:39:59,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:39:59,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-18 18:39:59,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:59,052 INFO L225 Difference]: With dead ends: 98 [2022-11-18 18:39:59,052 INFO L226 Difference]: Without dead ends: 57 [2022-11-18 18:39:59,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:39:59,054 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 12 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:59,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 126 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:39:59,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-18 18:39:59,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-18 18:39:59,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 50 states have internal predecessors, (60), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-18 18:39:59,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2022-11-18 18:39:59,062 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 26 [2022-11-18 18:39:59,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:59,062 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2022-11-18 18:39:59,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 18:39:59,063 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2022-11-18 18:39:59,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-18 18:39:59,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:59,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:59,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:39:59,065 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:59,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:59,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1399531278, now seen corresponding path program 1 times [2022-11-18 18:39:59,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:59,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013731646] [2022-11-18 18:39:59,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:59,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:59,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 18:39:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:59,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:59,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:59,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013731646] [2022-11-18 18:39:59,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013731646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:59,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:59,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:39:59,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470642036] [2022-11-18 18:39:59,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:59,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:39:59,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:59,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:39:59,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:39:59,243 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 18:39:59,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:59,374 INFO L93 Difference]: Finished difference Result 107 states and 138 transitions. [2022-11-18 18:39:59,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:39:59,374 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-11-18 18:39:59,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:59,376 INFO L225 Difference]: With dead ends: 107 [2022-11-18 18:39:59,376 INFO L226 Difference]: Without dead ends: 57 [2022-11-18 18:39:59,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:39:59,378 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 98 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:59,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 145 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:39:59,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-18 18:39:59,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-18 18:39:59,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 50 states have internal predecessors, (59), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-18 18:39:59,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 71 transitions. [2022-11-18 18:39:59,395 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 71 transitions. Word has length 30 [2022-11-18 18:39:59,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:59,396 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 71 transitions. [2022-11-18 18:39:59,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 18:39:59,396 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 71 transitions. [2022-11-18 18:39:59,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-18 18:39:59,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:59,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:59,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:39:59,402 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:59,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:59,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1512730306, now seen corresponding path program 1 times [2022-11-18 18:39:59,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:59,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577641883] [2022-11-18 18:39:59,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:59,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:59,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 18:39:59,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:59,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 18:39:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:59,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:59,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:59,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577641883] [2022-11-18 18:39:59,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577641883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:59,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:59,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:39:59,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58697378] [2022-11-18 18:39:59,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:59,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:39:59,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:59,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:39:59,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:39:59,538 INFO L87 Difference]: Start difference. First operand 57 states and 71 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 18:39:59,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:59,612 INFO L93 Difference]: Finished difference Result 153 states and 199 transitions. [2022-11-18 18:39:59,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:39:59,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-11-18 18:39:59,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:59,615 INFO L225 Difference]: With dead ends: 153 [2022-11-18 18:39:59,616 INFO L226 Difference]: Without dead ends: 103 [2022-11-18 18:39:59,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:39:59,619 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 42 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:59,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 277 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:39:59,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-18 18:39:59,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2022-11-18 18:39:59,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 78 states have (on average 1.3076923076923077) internal successors, (102), 86 states have internal predecessors, (102), 12 states have call successors, (12), 10 states have call predecessors, (12), 9 states have return successors, (13), 9 states have call predecessors, (13), 12 states have call successors, (13) [2022-11-18 18:39:59,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 127 transitions. [2022-11-18 18:39:59,637 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 127 transitions. Word has length 35 [2022-11-18 18:39:59,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:59,637 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 127 transitions. [2022-11-18 18:39:59,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 18:39:59,638 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 127 transitions. [2022-11-18 18:39:59,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-18 18:39:59,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:59,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:59,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:39:59,640 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:59,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:59,641 INFO L85 PathProgramCache]: Analyzing trace with hash -831145447, now seen corresponding path program 1 times [2022-11-18 18:39:59,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:59,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324387680] [2022-11-18 18:39:59,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:59,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:59,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 18:39:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:59,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 18:39:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:59,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:59,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:59,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324387680] [2022-11-18 18:39:59,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324387680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:59,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:59,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:39:59,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464811898] [2022-11-18 18:39:59,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:59,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:39:59,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:59,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:39:59,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:39:59,708 INFO L87 Difference]: Start difference. First operand 100 states and 127 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 18:39:59,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:39:59,724 INFO L93 Difference]: Finished difference Result 176 states and 225 transitions. [2022-11-18 18:39:59,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:39:59,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2022-11-18 18:39:59,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:39:59,726 INFO L225 Difference]: With dead ends: 176 [2022-11-18 18:39:59,726 INFO L226 Difference]: Without dead ends: 83 [2022-11-18 18:39:59,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:39:59,731 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:39:59,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 53 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:39:59,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-18 18:39:59,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-11-18 18:39:59,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 67 states have internal predecessors, (78), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-18 18:39:59,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 98 transitions. [2022-11-18 18:39:59,762 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 98 transitions. Word has length 37 [2022-11-18 18:39:59,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:39:59,763 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 98 transitions. [2022-11-18 18:39:59,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 18:39:59,763 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 98 transitions. [2022-11-18 18:39:59,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-18 18:39:59,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:39:59,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:59,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:39:59,765 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:39:59,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:59,766 INFO L85 PathProgramCache]: Analyzing trace with hash 895001880, now seen corresponding path program 1 times [2022-11-18 18:39:59,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:59,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061496561] [2022-11-18 18:39:59,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:59,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:39:59,822 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:39:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:39:59,871 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:39:59,874 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:39:59,875 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 18:39:59,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:39:59,880 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-18 18:39:59,884 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:39:59,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:39:59 BoogieIcfgContainer [2022-11-18 18:39:59,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:39:59,935 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:39:59,935 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:39:59,935 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:39:59,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:39:58" (3/4) ... [2022-11-18 18:39:59,937 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-18 18:39:59,994 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 18:39:59,994 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:39:59,995 INFO L158 Benchmark]: Toolchain (without parser) took 2939.47ms. Allocated memory is still 151.0MB. Free memory was 121.8MB in the beginning and 117.1MB in the end (delta: 4.7MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2022-11-18 18:39:59,995 INFO L158 Benchmark]: CDTParser took 0.98ms. Allocated memory is still 92.3MB. Free memory was 49.5MB in the beginning and 49.4MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:39:59,996 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.87ms. Allocated memory is still 151.0MB. Free memory was 121.3MB in the beginning and 120.9MB in the end (delta: 455.8kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 18:39:59,996 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.16ms. Allocated memory is still 151.0MB. Free memory was 120.9MB in the beginning and 118.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:39:59,997 INFO L158 Benchmark]: Boogie Preprocessor took 50.79ms. Allocated memory is still 151.0MB. Free memory was 118.8MB in the beginning and 117.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:39:59,997 INFO L158 Benchmark]: RCFGBuilder took 564.89ms. Allocated memory is still 151.0MB. Free memory was 117.2MB in the beginning and 102.1MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 18:39:59,998 INFO L158 Benchmark]: TraceAbstraction took 1708.10ms. Allocated memory is still 151.0MB. Free memory was 101.5MB in the beginning and 120.2MB in the end (delta: -18.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:39:59,998 INFO L158 Benchmark]: Witness Printer took 59.75ms. Allocated memory is still 151.0MB. Free memory was 120.2MB in the beginning and 117.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:40:00,001 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98ms. Allocated memory is still 92.3MB. Free memory was 49.5MB in the beginning and 49.4MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 484.87ms. Allocated memory is still 151.0MB. Free memory was 121.3MB in the beginning and 120.9MB in the end (delta: 455.8kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.16ms. Allocated memory is still 151.0MB. Free memory was 120.9MB in the beginning and 118.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.79ms. Allocated memory is still 151.0MB. Free memory was 118.8MB in the beginning and 117.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 564.89ms. Allocated memory is still 151.0MB. Free memory was 117.2MB in the beginning and 102.1MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1708.10ms. Allocated memory is still 151.0MB. Free memory was 101.5MB in the beginning and 120.2MB in the end (delta: -18.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 59.75ms. Allocated memory is still 151.0MB. Free memory was 120.2MB in the beginning and 117.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 516]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int methaneLevelCritical = 0; [L592] int pumpRunning = 0; [L423] int waterLevel = 1; [L593] int systemActive = 1; [L745] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L821] int retValue_acc ; [L822] int tmp ; [L826] FCALL select_helpers() [L827] FCALL select_features() [L828] CALL, EXPR valid_product() [L870] int retValue_acc ; [L873] retValue_acc = 1 [L874] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L828] RET, EXPR valid_product() [L828] tmp = valid_product() [L830] COND TRUE \read(tmp) [L832] FCALL setup() [L833] CALL runTest() [L812] CALL test() [L524] int splverifierCounter ; [L525] int tmp ; [L526] int tmp___0 ; [L527] int tmp___1 ; [L528] int tmp___2 ; [L531] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L533] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L535] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L541] tmp = __VERIFIER_nondet_int() [L543] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L545] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L441] COND TRUE waterLevel < 2 [L442] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L545] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L551] tmp___0 = __VERIFIER_nondet_int() [L553] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L561] tmp___2 = __VERIFIER_nondet_int() [L563] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=-1, waterLevel=2] [L576] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L600] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L607] COND TRUE \read(systemActive) [L609] CALL processEnvironment() [L629] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L632] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L647] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L609] RET processEnvironment() [L615] CALL __utac_acc__Specification3_spec__1() [L880] int tmp ; [L881] int tmp___0 ; [L882] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L886] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L886] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L886] tmp = isMethaneLevelCritical() [L888] COND FALSE !(\read(tmp)) [L892] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L892] RET, EXPR getWaterLevel() [L892] tmp___0 = getWaterLevel() [L894] COND TRUE tmp___0 == 2 [L896] CALL, EXPR isPumpRunning() [L681] int retValue_acc ; [L684] retValue_acc = pumpRunning [L685] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L896] RET, EXPR isPumpRunning() [L896] tmp___1 = isPumpRunning() [L898] COND FALSE !(\read(tmp___1)) [L902] CALL __automaton_fail() [L516] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 195 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 192 mSDsluCounter, 694 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 338 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 356 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=4, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 282 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-18 18:40:00,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eb27c4f-adb2-488b-b134-e1ee1ea2872d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE